New Arrivals/Restock

AEM Induction 21-815C Cold Air Induction System Fits 17-19 A4 A4 Quattro

flash sale iconLimited Time Sale
Until the end
19
54
44

$239.99 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
New  $399.99
quantity

Product details

Management number 205957749 Release Date 2025/10/31 List Price $160.00 Model Number 205957749
Category

Air Intake Kit

Cold Air Induction System

Cold Air Induction System; Incl. Dryflow Air Filter/Alum. Tubing/Clamps/Heat Shield; Estimated Horsepower Gain 11 HP @ 3300 RPM; Gunmetal Gray;


SPECIFICATIONS:
  • Air Box Included: Yes
  • Air Filter Element Washable: Yes
  • Air Filter Outlet Shape: Round
  • California Restricted: Not legal for sale or use in California
  • Clamp Color: Natural
  • Clamp Material: Stainless Steel
  • Clamp Quantity: 3
  • Clamp Style: Regular
  • Coupler Color: Black
  • Couplers Included: 1
  • Estimated Horse Power Gain: 11 HP @ 3300 RPM
  • Filter Color: Red
  • Filter Material: Non-Woven Synthetic
  • Horse Power Increase: 11 HP
  • Intake Pipe Color: Black
  • Intake Pipe Material: Not Applicable
  • Item Weight: 13.000 lbs. (5.9 kg)
  • Mass Air Flow Sensor Included: Mass Air Flow Sensor Adapter Included When Required
  • Mounting Hardware Included: Yes
  • Oil Included: No Filter Oil Required
  • Package Material: Corrugated
  • Package Type: Box
  • Product Box Height: 11.630 in. (295mm)
  • Product Box Length: 24.380 in. (619mm)
  • Product Box Width: 12.250 in. (311mm)
  • Replacement Filter: 21-209DK
  • RPM: 3300
  • Street Legal: No
  • TUV Approved (Europe): No
  • WARNING CA Proposition 65: Yes
  • WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

FEATURES:
  • Increased Horsepower
  • Tuned And DynoTested To Improve Acceleration And Engine Sound
  • Clear AEM Logo Also Acts As A Filter Monitor
  • Air Filter Lasts Up To 100 000 Miles BF Cleaning Is Required
  • Washable And Reusable Oil Free Filter Media
  • AEM Lifetime Limited Warranty

The 21-815C Performance Cold Air Intake System produces horsepower and torque gains by replacing the restrictive air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Audi A4 models. The cone shaped AEM Dryflow air filter is made of a synthetic media which requires no oil and can be used up to 100,000 miles before cleaning (depending on driving conditions). The two piece heat shield keeps hot engine air from entering the air intake system and directs cooler air using the factory inlet scoop. It has been designed to have more air capacity than the factory unit for better air flow. A clear AEM logo also doubles as a window to monitor if the filter needs servicing. The factory vacuum tube mounts directly on the intake tube. The air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 21-815C vehicle applications to determine the legal status for each vehicle.

Innovation has always been AEM's core competency. As J.C. would say "if you can't make something better, why make it all?" This "make it better" drive combined with our commitment to the sport compact market continues to distinguish AEM from the many company's offering "Me Too" copycat products. Our innovations are inspired by a passion for engineering excellence, being there and getting our hands dirty, the only way to really understand technology enough to make it better. The company continues to lead the way with innovative products that push the envelope of what is possible.


Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review